One of the most important questions they had to consider was ____ of public health.      

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• 1The invention of the chip greatly _______ the development of computer science; _____ the computer science stepped on the freeway of rapid development.     

  A.improved; after that

  B.advanced; after that

  C.quickened; after which

  D.advanced; after which

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• 2—Why are you making so much noise?—I just can't help _____     .  

  A.so

  B.that

  C.this

  D.it

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• 3The goals of this project are to promote the commercialization of home-use robots, whose market issmaller than _______ for industrial robots, and to develop safety technologies and standards.

  A.it

  B.them

  C.that

  D.one

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• 4I've heard ________ said that Elizabeth is a tough business woman. 

  A.it

  B.her

  C.what

  D.that

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• 5—When shall we start?    —Let's make ______ 8:30. Is that all right?

  A.it

  B.that

  C.this

  D./

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• 6The case of Li Gang became a hot topic and so did ______of Li Tianyi.

  A.it

  B.one

  C.that

  D.this

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• 7______ is a best-known secret in success that get ready in much of our life and you may make the most of the opportunity．

  A.What

  B.As

  C.It

  D.That

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• 8  _____ is known to us is that tobacco contains nicotine and other harmful products，so you should give up smoking．

  A.As

  B.It

  C.What

  D.Which

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• 9Although we may not realize ________, when we talk with others we make ourselves understood not just by words but also by body movements.

  A.it

  B.them

  C.that

  D.ourselves

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• 10—The tickets for the hit move Frozen have been sold out. —Thanks for reminding me, but I am lucky to have got  _____   .

  A.another

  B.it

  C.that

  D.one

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